[How do I] this parallax effect?

1st Im spanish, I'm sorry about my english.

2nd I don't want to spam, but this is the only example I has found.

Ok,Im starting to use C2 and I trying to do a main menu for a game, this menu has a parallax effect in his background. The effect are warpportal.com/landing/ragnarok2/registration.aspx

Thank so much for your help ^^

1st Im spanish, I'm sorry about my english.

2nd I don't want to spam, but this is the only example I has found.

Ok,Im starting to use C2 and I trying to do a main menu for a game, this menu has a parallax effect in his background. The effect are warpportal.com/landing/ragnarok2/registration.aspx

Thank so much for your help ^^

I forgot to upload my example and the project

Example dl.dropboxusercontent.com/u/15411680/Parallax/index.html

Project dl.dropboxusercontent.com/u/15411680/Parallax/Parallax%20example.capx

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